package com.lqq.springcloud.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.lqq.springcloud.myhandler.CustomerBlockHandler;
import com.lqq.springcloud.entities.CommonResult;
import com.lqq.springcloud.entities.Payment;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class RateLimitController {
    @GetMapping("/byResource")
    @SentinelResource(value = "byResource", blockHandler = "handleException")
    public CommonResult byResource() {
        return new CommonResult(200, "按资源测试限流OK", new Payment(2020L,"serial001") );
    }

    public CommonResult handleException(BlockException exception) {
        return new CommonResult(444, exception.getClass().getCanonicalName()+"\t 服务不可用");
    }


    @GetMapping("/rateLimit/byUrl")
    @SentinelResource(value = "byUrl")
    public CommonResult byUrl()
    {
        return new CommonResult(200,"按url限流测试OK",new Payment(2020L,"serial002"));
    }


    /**
     * 自定义通用的限流处理逻辑，
     blockHandlerClass = CustomerBlockHandler.class
     blockHandler = handleException2
     上述配置：找CustomerBlockHandler类里的handleException2方法进行兜底处理
     */
    /**
     * 自定义通用的限流处理逻辑
     */
    @GetMapping("/rateLimit/customerBlockHandler")
    @SentinelResource(value = "customerBlockHandler",
                      blockHandlerClass = CustomerBlockHandler.class,
                      blockHandler = "handleException1")
    public CommonResult customerBlockHandler() {
        return new CommonResult(200,"按客户自定义限流处理逻辑");
    }
}
